- Planetary system
- References
- Notes
- External links
| name = HD 85512
}}{{Starbox image
| image =
| caption = Close-up of the sky around the star HD 85512.
| credit = ESO and Digitized Sky Survey 2.
}}{{Starbox observe
| epoch = 2000
| constell = Vela
| ra = {{RA|09|51|07.1}}[1]
| dec = {{DEC|−43|30|10}}[1]
| appmag_v = 7.66
}}{{Starbox character
| class = K5V
| r-I = 0.62
| v-r = 0.71
| b-v = 1.18
| u-b = 1.12
| variable =
}}{{Starbox astrometry
| radial_v = -9.6
| prop_mo_ra = 461.92 ± 0.52[1]
| prop_mo_dec = −471.92 ± 0.51[1]
| parallax = 89.62
| p_error = 0.67
| parallax_footnote = [1]
| absmag_v = 7.39
}}{{Starbox detail
| mass = 0.69
| radius = {{nowrap|0.533 ± 0.04}}[1]
| luminosity_bolometric = {{nowrap|0.126 ± 0.008}}
| temperature = {{nowrap|4715 ± 102}}
| metal = 44–50%
| gravity = 4.39 ± 0.28
| rotation = 47.13 ± 6.98
| rotational_velocity = <3
| age_gyr = 5.61 ± 0.61
}}{{Starbox catalog
| names = CD-42 5678, Gliese 370, HD 85512, HIP 48331, LHS 2201, NStars 0951-4330
}}{{Starbox reference
|Simbad=HD+85512
}}{{Starbox end}}
HD 85512 is a solitary K-type main-sequence star located approximately 36 light-years away in the constellation Vela. It is approximately one billion years older than the Sun. It is extremely chromospherically inactive, only slightly more active than Tau Ceti. The star is known to host one low-mass planet.
Planetary system
On August 19, 2011, a ≥3.6 Earth-mass planet was discovered using HARPS that is "just inside" the habitable zone, along with the planets of 82 G. Eridani and HR 7722 c.[9] The planet could be potentially cool enough to host liquid water if the planet exhibits more than 50% cloud coverage. HD 85512 b is currently the fifth best candidate for habitability according to the Habitable Exoplanets Catalog.
{{OrbitboxPlanet begin| table_ref = [9]
}}{{OrbitboxPlanet
| exoplanet = b
| mass_earth = ≥3.6
| period = 58.43 ± 0.13
| semimajor = 0.26 ± 0.005
| eccentricity = 0.11 ± 0.1
}}{{Orbitbox end}}
References
1. ^From 
, where 
is the radius, 
is the luminosity, 
is the effective surface temperature and 
is the Stefan–Boltzmann constant.
2. ^{{cite news|title=Fifty New Exoplanets Discovered by HARPS|url=http://www.eso.org/public/news/eso1134/|accessdate=13 September 2011|newspaper=ESO Science Release|date=12 September 2011}}
3. ^1 2 {{cite journal | title=The HARPS search for Earth-like planets in the habitable zone. I. Very low-mass planets around HD 20794, HD 85512, and HD 192310 | url=http://www.aanda.org/articles/aa/full_html/2011/10/aa17055-11/aa17055-11.html | last1=Pepe | first1=F. | last2=Lovis | first2=C. | last3=Ségransan | first3=D. | last4=Benz | first4=W. | last5=Bouchy | first5=F. | last6=Dumusque | first6=X. | last7=Mayor | first7=M. | last8=Queloz | first8=D. | last9=Santos | first9=N. C. | last10=Udry | first10=S. | display-authors=1 | journal=Astronomy and Astrophysics | volume=534 | at=A58 | date=2011 | arxiv=1108.3447 | bibcode=2011A&A...534A..58P | doi=10.1051/0004-6361/201117055 }}
4. ^1 2 3 4 5 {{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }}Vizier catalog entry
[3][4], where is the radius, is the luminosity, is the effective surface temperature and is the Stefan–Boltzmann constant.2. ^{{cite news|title=Fifty New Exoplanets Discovered by HARPS|url=http://www.eso.org/public/news/eso1134/|accessdate=13 September 2011|newspaper=ESO Science Release|date=12 September 2011}}
3. ^1 2 {{cite journal | title=The HARPS search for Earth-like planets in the habitable zone. I. Very low-mass planets around HD 20794, HD 85512, and HD 192310 | url=http://www.aanda.org/articles/aa/full_html/2011/10/aa17055-11/aa17055-11.html | last1=Pepe | first1=F. | last2=Lovis | first2=C. | last3=Ségransan | first3=D. | last4=Benz | first4=W. | last5=Bouchy | first5=F. | last6=Dumusque | first6=X. | last7=Mayor | first7=M. | last8=Queloz | first8=D. | last9=Santos | first9=N. C. | last10=Udry | first10=S. | display-authors=1 | journal=Astronomy and Astrophysics | volume=534 | at=A58 | date=2011 | arxiv=1108.3447 | bibcode=2011A&A...534A..58P | doi=10.1051/0004-6361/201117055 }}
4. ^1 2 3 4 5 {{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }}Vizier catalog entry
}}
Notes
{{Reflist|group=note}}External links
- {{ARICNS link|id=4c00766|label=ARICNS: 00766}}
- NStars: 0951-4330{{dead link|date=October 2017 |bot=InternetArchiveBot |fix-attempted=yes }}
8 : HD 85512|Vela (constellation)|Henry Draper Catalogue objects|Hipparcos objects|Gliese and GJ objects|K-type main-sequence stars|Planetary systems|Durchmusterung objects
- Informaiton
- Informal admissions in South African law
- Informal ballot
- Informal collaborators (Stasi)
- Informal economy of China
- Informal fallacies
- Informal Inferential Reasoning
- Informal inferential reasoning
- Informal Introduction
- Informalism
- Informality
- Informal letter
- Informal Logic (journal)
- Informal marriage
- Informal Methods (Validation and Verification)
- Informal set theory
- Informal Value Transfer Systems
- Informant (chess)
- Informant feedback
- Informa Pharmaceutical Science
- Informasian Media Group
- Informasian Media Group, Inc.
- Informatically
- Informaticists
- Informatics (academic field)